Investigation of Nonstandard Neutrino-Two Photon Interaction at ILC
Turkish Physical Society 41th International Physics Congress (TPS41), Muğla, Turkey, 1 - 05 September 2025, pp.76-82, (Full Text)
- Publication Type: Conference Paper / Full Text
- City: Muğla
- Country: Turkey
- Page Numbers: pp.76-82
- Open Archive Collection: AVESIS Open Access Collection
- Uşak University Affiliated: Yes
Abstract
In this study, nonstandard 𝜈𝜈̅𝛾𝛾 couplings described by dimension-7 effective Lagrangian are investigated via the process 𝑒+𝑒− →𝜈𝜈̅𝛾 at the International Linear Collider (ILC). Detailed signal and possible background events are generated using MadGraph5aMC@NLO, with parton showering performed Pythia8, while detector effects and event reconstruction are modeled Delphes3 and Madanalysis5 frameworks. Sensitivity estimates are obtained by performing a statistical analysis including systematic uncertainties. For the ILC at √s=500 GeV with an integrated luminosity of Lint=180 fb−1, upper bounds of order α12~4×10−16 are derived. The resulting limits improve upon existing constraints from LEP data on 𝑍→𝜈𝜈̅𝛾𝛾 decay by approximately seven orders of magnitude, highlighting the strong potential of future lepton colliders to probe neutrino electromagnetic properties and physics beyond the Standard Model.